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Abstract #0408

MR Angiography in Pre-Operative Evaluation for Fibula Free-Flap Transfer Operation: Application, Branching Pattern Analysis and Septocutaneous Perforator Identification

Gurpreet Singh Sandhu1,2, Rod P. Rezaee3, Katherine Wright4, John A. Jesberger2, Mark A. Griswold1,4, Vikas Gulani1,2

1Radiology, University Hospitals of Cleveland, Case Western Reserve University, Cleveland, OH, United States; 2Case Center for Imaging Research, Case Western Reserve University, Cleveland, OH, United States; 3Case Center for Imaging Research, University Hospitals of Cleveland, Case Western Reserve University, Cleveland, OH, United States; 4Biomedical Engineering, Case Western Reserve University, Cleveland, OH, United States


Lower leg magnetic resonance angiography (MRA) images of fibula free-flap transfer operation (FFFTO) candidates are commonly reported only in terms of branching patterns and pathological lesions in the lower leg arterial tree. Recent technical developments have enabled the acquisition of lower leg MRA images with a sub-millimeter spatial resolution that can also be employed to locate peroneal artery septocutaneous perforators (SCPs). Here, we describe an extension of application of MRA for visualization of the SCPs in these patients and compare bolus-chase and time-resolved MRA techniques for identification of the branching patterns and SCPs.